ASTM C1189-11(2018)
Standard Guide to Procedures for Calibrating Automatic Pedestrian SNM Monitors

Standard No.

ASTM C1189-11(2018)

Release Date

2018

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM C1189-11(2018)

Scope

1.1 This guide covers calibrating the energy response of the radiation detectors and setting the discriminator and alarm thresholds used in automatic pedestrian special nuclear material (SNM) monitors. 1.2 Automatic pedestrian SNM Monitors and their application are described in Guide C1112, which suggests that the monitors be calibrated and tested when installed and that, thereafter, the calibration should be checked and the monitor tested with SNM at three-month intervals. 1.3 Dependable operation of SNM monitors rests, in part, on an effective program to test, calibrate, and maintain them. The procedures and methods described in this guide may help both to achieve dependable operation and obtain timely warning of misoperation. 1.4 This guide can be used in conjunction with other ASTM standards. Fig. 1 illustrates the relationship between calibration and other procedures described in standard guides, and it also shows how the guides relate to an SNM monitor user. The guides below the user in the figure deal with routine procedures for operational monitors. Note that Guide C993 is an in-plant performance evaluation that is used to verify acceptable detection of SNM after a monitor is calibrated. The guides shown above the user in Fig. 1 give information on applying SNM monitors (C1112) and on evaluating SNM monitors (C1169) to provide comparative information on monitor performance. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM C1189-11(2018) Referenced Document

• ASTM C1112 Standard Guide for Application of Radiation Monitors to the Control and Physical Security of Special Nuclear Material
• ASTM C1169 Standard Guide for Laboratory Evaluation of Automatic Pedestrian SNM Monitor Performance
• ASTM C859 Standard Terminology Relating to Nuclear Materials
• ASTM C993 Standard Guide for In-Plant Performance Evaluation of Automatic Pedestrian SNM Monitors
• ASTM E876 Standard Practice for Use of Statistics in the Evaluation of Spectrometric Data (Withdrawn 2003)

ASTM C1189-11(2018) history

• 2018 ASTM C1189-11(2018) Standard Guide to Procedures for Calibrating Automatic Pedestrian SNM Monitors
• 2011 ASTM C1189-11 Standard Guide to Procedures for Calibrating Automatic Pedestrian SNM Monitors
• 2002 ASTM C1189-02 Standard Guide to Procedures for Calibrating Automatic Pedestrian SNM Monitors
• 1995 ASTM C1189-95(2001) Standard Guide to Procedures for Calibrating Automatic Pedestrian SNM Monitors
• 1995 ASTM C1189-95 Standard Guide to Procedures for Calibrating Automatic Pedestrian SNM Monitors